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[libvirt] [PATCH] build: ignore generated file
by Eric Blake 01 Jul '11

01 Jul '11

* .gitignore: Exempt jsontest binary. --- Pushing under the trivial rule. .gitignore | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/.gitignore b/.gitignore index be4193d..1bfb7b9 100644 --- a/.gitignore +++ b/.gitignore @@ -57,6 +57,7 @@ /tests/*.log /tests/cputest /tests/hashtest +/tests/jsontest /tests/networkxml2argvtest /tests/nwfilterxml2xmltest /tests/openvzutilstest -- 1.7.4.4

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[libvirt] [PATCH 0/4] several Coverity fixes
by Eric Blake 01 Jul '11

01 Jul '11

I ran Coverity on the state of yesterday's git; while I have not finished reading through all the findings, I figured I'd get some review started on these. Eric Blake (4): virsh: avoid integer overflow virsh: avoid uninitialized variable rpc: avoid freeing uninitialized variable build: avoid double-close bug with pipe2 .gnulib | 2 +- src/rpc/virnetclient.c | 2 +- src/rpc/virnetsocket.c | 4 ++-- tools/virsh.c | 7 +++++-- 4 files changed, 9 insertions(+), 6 deletions(-) -- 1.7.4.4

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[libvirt] [PATCH] Add conditionals to allow build without SASL
by Daniel P. Berrange 01 Jul '11

01 Jul '11

* daemon/libvirtd.c, daemon/remote.c: Add #if HAVE_SASL and suitable function stubs to allow build without SASL --- daemon/libvirtd.c | 6 ++++++ daemon/remote.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 50 insertions(+), 0 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 118aa92..60ee705 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -91,7 +91,9 @@ #include "configmake.h" +#if HAVE_SASL virNetSASLContextPtr saslCtxt = NULL; +#endif virNetServerProgramPtr remoteProgram = NULL; virNetServerProgramPtr qemuProgram = NULL; @@ -560,6 +562,7 @@ static int daemonSetupNetworking(virNetServerPtr srv, } } +#if HAVE_SASL if (config->auth_unix_rw == REMOTE_AUTH_SASL || config->auth_unix_ro == REMOTE_AUTH_SASL || config->auth_tcp == REMOTE_AUTH_SASL || @@ -569,6 +572,7 @@ static int daemonSetupNetworking(virNetServerPtr srv, if (!saslCtxt) goto error; } +#endif #if HAVE_POLKIT0 if (auth_unix_rw == REMOTE_AUTH_POLKIT || @@ -745,8 +749,10 @@ static int remoteConfigGetAuth(virConfPtr conf, const char *key, int *auth, cons if (STREQ(p->str, "none")) { *auth = VIR_NET_SERVER_SERVICE_AUTH_NONE; +#if HAVE_SASL } else if (STREQ(p->str, "sasl")) { *auth = VIR_NET_SERVER_SERVICE_AUTH_SASL; +#endif } else if (STREQ(p->str, "polkit")) { *auth = VIR_NET_SERVER_SERVICE_AUTH_POLKIT; } else { diff --git a/daemon/remote.c b/daemon/remote.c index 9e6cf77..2889908 100644 --- a/daemon/remote.c +++ b/daemon/remote.c @@ -1653,6 +1653,7 @@ cleanup: } +#ifdef HAVE_SASL /* * Initializes the SASL session in prepare for authentication * and gives the client a list of allowed mechanisms to choose @@ -1969,6 +1970,49 @@ error: virMutexUnlock(&priv->lock); return -1; } +#else +static int +remoteDispatchAuthSaslInit(virNetServerPtr server ATTRIBUTE_UNUSED, + virNetServerClientPtr client ATTRIBUTE_UNUSED, + virNetMessageHeaderPtr hdr ATTRIBUTE_UNUSED, + virNetMessageErrorPtr rerr, + remote_auth_sasl_init_ret *ret ATTRIBUTE_UNUSED) +{ + VIR_WARN("Client tried unsupported SASL auth"); + virNetError(VIR_ERR_AUTH_FAILED, "%s", + _("authentication failed")); + virNetMessageSaveError(rerr); + return -1; +} +static int +remoteDispatchAuthSaslStart(virNetServerPtr server ATTRIBUTE_UNUSED, + virNetServerClientPtr client ATTRIBUTE_UNUSED, + virNetMessageHeaderPtr hdr ATTRIBUTE_UNUSED, + virNetMessageErrorPtr rerr, + remote_auth_sasl_start_args *args ATTRIBUTE_UNUSED, + remote_auth_sasl_start_ret *ret ATTRIBUTE_UNUSED) +{ + VIR_WARN("Client tried unsupported SASL auth"); + virNetError(VIR_ERR_AUTH_FAILED, "%s", + _("authentication failed")); + virNetMessageSaveError(rerr); + return -1; +} +static int +remoteDispatchAuthSaslStep(virNetServerPtr server ATTRIBUTE_UNUSED, + virNetServerClientPtr client ATTRIBUTE_UNUSED, + virNetMessageHeaderPtr hdr ATTRIBUTE_UNUSED, + virNetMessageErrorPtr rerr, + remote_auth_sasl_step_args *args ATTRIBUTE_UNUSED, + remote_auth_sasl_step_ret *ret ATTRIBUTE_UNUSED) +{ + VIR_WARN("Client tried unsupported SASL auth"); + virNetError(VIR_ERR_AUTH_FAILED, "%s", + _("authentication failed")); + virNetMessageSaveError(rerr); + return -1; +} +#endif -- 1.7.4.4

4 3

[libvirt] SIGTERM undeclared, virNetSocketFree
by Jason Helfman 01 Jul '11

01 Jul '11

Hi, I get this error when compiling 0.9.3-rc2 on FreeBSD. Is there a fix for this? rpc/virnetsocket.c: In function 'virNetSocketFree': rpc/virnetsocket.c:654: warning: implicit declaration of function 'kill' rpc/virnetsocket.c:654: warning: nested extern declaration of 'kill' [-Wnested-externs] rpc/virnetsocket.c:654: error: 'SIGTERM' undeclared (first use in this function) rpc/virnetsocket.c:654: error: (Each undeclared identifier is reported only once rpc/virnetsocket.c:654: error: for each function it appears in.) gmake[3]: *** [libvirt_net_rpc_la-virnetsocket.lo] Error 1 gmake[3]: Leaving directory `/home/jhelfman/ports/devel/libvirt/work/libvirt-0.9.3/src' gmake[2]: *** [all] Error 2 gmake[2]: Leaving directory `/home/jhelfman/ports/devel/libvirt/work/libvirt-0.9.3/src' gmake[1]: *** [all-recursive] Error 1 gmake[1]: Leaving directory `/home/jhelfman/ports/devel/libvirt/work/libvirt-0.9.3' gmake: *** [all] Error 2 *** Error code 1 Thanks, Jason -- Jason Helfman System Administrator experts-exchange.com http://www.experts-exchange.com/M_4830110.html E4AD 7CF1 1396 27F6 79DD 4342 5E92 AD66 8C8C FBA5

4 4

[libvirt] [PATCH] Fix stream procedure number for virDomainMigratePrepareTunnel3
by Daniel P. Berrange 01 Jul '11

01 Jul '11

The virDomainMigratePrepareTunnel3 impl in the remote driver was using the procedure number for the virDomainMigratePrepareTunnel method. This doesn't work out so well, because it makes the server ignore & drop all stream packets * src/remote/remote_driver.c: Fix procedure for PrepareTunnel3 --- src/remote/remote_driver.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index ce9bcb1..f318740 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -3691,7 +3691,7 @@ remoteDomainMigratePrepareTunnel3(virConnectPtr dconn, memset(&ret, 0, sizeof(ret)); if (!(netst = virNetClientStreamNew(priv->remoteProgram, - REMOTE_PROC_DOMAIN_MIGRATE_PREPARE_TUNNEL, + REMOTE_PROC_DOMAIN_MIGRATE_PREPARE_TUNNEL3, priv->counter))) goto done; -- 1.7.4.4

2 2

[libvirt] [PATCH] Send back an error if we get unexpected stream control message
by Daniel P. Berrange 01 Jul '11

01 Jul '11

We ignore any stream data packets which come in for streams which are not registered, since these packets are async and do not have a reply. If we get a stream control packet though we must send back an actual error, otherwise a (broken) client may hang forever making it hard to diagnose the client bug. * src/rpc/virnetserverprogram.c: Send back error for unexpected stream control messages --- src/rpc/virnetserverprogram.c | 25 +++++++++++++++++-------- 1 files changed, 17 insertions(+), 8 deletions(-) diff --git a/src/rpc/virnetserverprogram.c b/src/rpc/virnetserverprogram.c index ca80ae0..63a6b6d 100644 --- a/src/rpc/virnetserverprogram.c +++ b/src/rpc/virnetserverprogram.c @@ -257,14 +257,23 @@ int virNetServerProgramDispatch(virNetServerProgramPtr prog, * stream packets after we closed down a stream. Just drop & ignore * these. */ - VIR_INFO("Ignoring unexpected stream data serial=%d proc=%d status=%d", - msg->header.serial, msg->header.proc, msg->header.status); - /* Send a dummy reply to free up 'msg' & unblock client rx */ - memset(msg, 0, sizeof(*msg)); - msg->header.type = VIR_NET_REPLY; - if (virNetServerClientSendMessage(client, msg) < 0) { - ret = -1; - goto cleanup; + if (msg->header.status == VIR_NET_CONTINUE) { + VIR_INFO("Ignoring unexpected stream data serial=%d proc=%d status=%d", + msg->header.serial, msg->header.proc, msg->header.status); + /* Send a dummy reply to free up 'msg' & unblock client rx */ + memset(msg, 0, sizeof(*msg)); + msg->header.type = VIR_NET_REPLY; + if (virNetServerClientSendMessage(client, msg) < 0) { + ret = -1; + goto cleanup; + } + } else { + VIR_INFO("Unexpected stream control message serial=%d proc=%d status=%d", + msg->header.serial, msg->header.proc, msg->header.status); + virNetError(VIR_ERR_RPC, + _("Unexpected stream control message serial=%d proc=%d status=%d"), + msg->header.serial, msg->header.proc, msg->header.status); + goto error; } ret = 0; break; -- 1.7.4.4

2 1

[libvirt] [PATCH] Fix release of virNetMessagePtr instances in streams processing
by Daniel P. Berrange 01 Jul '11

01 Jul '11

If a message packet for a invalid stream is received it is just free'd. This is not good because it doesn't let the client RPC request counter decrement. If a stream is shutdown with pending packets the message also isn't released properly because of an incorrect header type * daemon/stream.c: Fix message header type * src/rpc/virnetserverprogram.c: Send dummy reply instead of free'ing ignored stream message --- daemon/stream.c | 1 + src/rpc/virnetserverprogram.c | 9 ++++++++- 2 files changed, 9 insertions(+), 1 deletions(-) diff --git a/daemon/stream.c b/daemon/stream.c index 685cee2..56d79c2 100644 --- a/daemon/stream.c +++ b/daemon/stream.c @@ -327,6 +327,7 @@ int daemonFreeClientStream(virNetServerClientPtr client, virNetMessagePtr tmp = msg->next; /* Send a dummy reply to free up 'msg' & unblock client rx */ memset(msg, 0, sizeof(*msg)); + msg->header.type = VIR_NET_REPLY; if (virNetServerClientSendMessage(client, msg) < 0) { virNetServerClientMarkClose(client); virNetMessageFree(msg); diff --git a/src/rpc/virnetserverprogram.c b/src/rpc/virnetserverprogram.c index 4afed64..ca80ae0 100644 --- a/src/rpc/virnetserverprogram.c +++ b/src/rpc/virnetserverprogram.c @@ -259,7 +259,13 @@ int virNetServerProgramDispatch(virNetServerProgramPtr prog, */ VIR_INFO("Ignoring unexpected stream data serial=%d proc=%d status=%d", msg->header.serial, msg->header.proc, msg->header.status); - virNetMessageFree(msg); + /* Send a dummy reply to free up 'msg' & unblock client rx */ + memset(msg, 0, sizeof(*msg)); + msg->header.type = VIR_NET_REPLY; + if (virNetServerClientSendMessage(client, msg) < 0) { + ret = -1; + goto cleanup; + } ret = 0; break; @@ -275,6 +281,7 @@ int virNetServerProgramDispatch(virNetServerProgramPtr prog, error: ret = virNetServerProgramSendReplyError(prog, client, msg, &rerr, &msg->header); +cleanup: return ret; } -- 1.7.4.4

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[libvirt] libvirt-0.9.3 week freeze, RC1 version to test
by Daniel Veillard 01 Jul '11

01 Jul '11

So we are entering the week freeze for the new version 0.9.3 I have made an rc1 tarball available at: ftp://libvirt.org/libvirt/libvirt-0.9.3-rc1.tar.gz along with rpms for those interested We pushed a lot of patches in the last few days, we know there is at least some cleanup issues, but I tried it locally and basic operations seems to work fine, please give it a try too and report issues, thanks ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

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[libvirt] [PATCH 0/3] Fix stream upload in new RPC code
by Daniel P. Berrange 01 Jul '11

01 Jul '11

These patches do three small fixes to the RPC code in libvirtd to make sure stream upload works correctly again

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[libvirt] [PATCH] Fix leak of virStreamPtr object with callback added in fdstream impl
by Daniel P. Berrange 01 Jul '11

01 Jul '11

When adding a callback to an FD stream, we take an extra reference on the virStreamPtr instance. We forgot to registered a free function with the callback, so when the callback was removed, the extra reference held on virStreamPtr was not released. * src/fdstream.c: Use a free callback to release reference on virStreamPtr when removing callback --- src/fdstream.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) diff --git a/src/fdstream.c b/src/fdstream.c index 182b6fa..54f8198 100644 --- a/src/fdstream.c +++ b/src/fdstream.c @@ -171,6 +171,13 @@ static void virFDStreamEvent(int watch ATTRIBUTE_UNUSED, } } +static void virFDStreamCallbackFree(void *opaque) +{ + virStreamPtr st = opaque; + virStreamFree(st); +} + + static int virFDStreamAddCallback(virStreamPtr st, int events, @@ -198,7 +205,7 @@ virFDStreamAddCallback(virStreamPtr st, events, virFDStreamEvent, st, - NULL)) < 0) { + virFDStreamCallbackFree)) < 0) { streamsReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("cannot register file watch on stream")); goto cleanup; -- 1.7.4.4

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